Jeffrey Konvitz (born 1944 in New York) is an American attorney, writer, and film producer. He was raised in Woodmere, New York and graduated from Hewlett High School in 1962. He continued his education at Cornell University (BA 1966) and the Columbia University School of Law (1969). Konvitz is probably best known for writing the novel The Sentinel, published in 1974. It was followed by a film adaptation in 1977, which he produced and adapted from the novel. Konvitz was Managing Partner of VX119, a financing company in the entertainment industry.